Returns diagram settings for a feature. More...

#include <qgsdiagramrendererv2.h>

Inheritance diagram for QgsDiagramRendererV2:

Public Member Functions
	QgsDiagramRendererV2 ()

virtual	~QgsDiagramRendererV2 ()

virtual QgsDiagramRendererV2 *	clone () const =0
	Returns new instance that is equivalent to this one. More...

QgsDiagram *	diagram () const

virtual QList< QString >	diagramAttributes () const =0
	Returns attribute indices needed for diagram rendering. More...

virtual QList< QgsDiagramSettings >	diagramSettings () const =0
	Returns list with all diagram settings in the renderer. More...

virtual QList< QgsLayerTreeModelLegendNode * >	legendItems (QgsLayerTreeLayer *nodeLayer) const
	Returns list of legend nodes for the diagram. More...

virtual void	readXML (const QDomElement &elem, const QgsVectorLayer *layer)=0

void	renderDiagram (const QgsFeature &feature, QgsRenderContext &c, const QPointF &pos)

virtual QString	rendererName () const =0

void	setDiagram (QgsDiagram *d)

virtual QSizeF	sizeMapUnits (const QgsFeature &feature, const QgsRenderContext &c)
	Returns size of the diagram for a feature in map units. More...

virtual void	writeXML (QDomElement &layerElem, QDomDocument &doc, const QgsVectorLayer *layer) const =0

Protected Member Functions
	QgsDiagramRendererV2 (const QgsDiagramRendererV2 &other)

void	_readXML (const QDomElement &elem, const QgsVectorLayer *layer)

void	_writeXML (QDomElement &rendererElem, QDomDocument &doc, const QgsVectorLayer *layer) const

void	convertSizeToMapUnits (QSizeF &size, const QgsRenderContext &context) const
	Converts size from mm to map units. More...

virtual bool	diagramSettings (const QgsFeature &feature, const QgsRenderContext &c, QgsDiagramSettings &s)=0
	Returns diagram settings for a feature (or false if the diagram for the feature is not to be rendered). More...

virtual QSizeF	diagramSize (const QgsFeature &features, const QgsRenderContext &c)=0
	Returns size of the diagram (in painter units) or an invalid size in case of error. More...

Static Protected Member Functions
static int	dpiPaintDevice (const QPainter *)
	Returns the paint device dpi (or -1 in case of error. More...

Protected Attributes
QgsDiagram *	mDiagram
	Reference to the object that does the real diagram rendering. More...

Detailed Description

Returns diagram settings for a feature.

Definition at line 179 of file qgsdiagramrendererv2.h.

Constructor & Destructor Documentation

QgsDiagramRendererV2::QgsDiagramRendererV2 ( )

Definition at line 297 of file qgsdiagramrendererv2.cpp.

QgsDiagramRendererV2::~QgsDiagramRendererV2 ( )

virtual

Definition at line 302 of file qgsdiagramrendererv2.cpp.

QgsDiagramRendererV2::QgsDiagramRendererV2 ( const QgsDiagramRendererV2 & other )

protected

Definition at line 313 of file qgsdiagramrendererv2.cpp.

Member Function Documentation

void QgsDiagramRendererV2::_readXML	(	const QDomElement &	elem,
		const QgsVectorLayer *	layer
	)

protected

Definition at line 375 of file qgsdiagramrendererv2.cpp.

void QgsDiagramRendererV2::_writeXML	(	QDomElement &	rendererElem,
		QDomDocument &	doc,
		const QgsVectorLayer *	layer
	)		const

protected

Definition at line 399 of file qgsdiagramrendererv2.cpp.

virtual QgsDiagramRendererV2* QgsDiagramRendererV2::clone ( ) const

pure virtual

Returns new instance that is equivalent to this one.

Note: added in 2.4

Implemented in QgsLinearlyInterpolatedDiagramRenderer, and QgsSingleCategoryDiagramRenderer.

void QgsDiagramRendererV2::convertSizeToMapUnits	(	QSizeF &	size,
		const QgsRenderContext &	context
	)		const

protected

Converts size from mm to map units.

Definition at line 350 of file qgsdiagramrendererv2.cpp.

QgsDiagram* QgsDiagramRendererV2::diagram ( ) const

inline

Definition at line 201 of file qgsdiagramrendererv2.h.

virtual QList<QString> QgsDiagramRendererV2::diagramAttributes ( ) const

pure virtual

Returns attribute indices needed for diagram rendering.

Implemented in QgsLinearlyInterpolatedDiagramRenderer, and QgsSingleCategoryDiagramRenderer.

virtual QList<QgsDiagramSettings> QgsDiagramRendererV2::diagramSettings ( ) const

pure virtual

Returns list with all diagram settings in the renderer.

Implemented in QgsLinearlyInterpolatedDiagramRenderer, and QgsSingleCategoryDiagramRenderer.

virtual bool QgsDiagramRendererV2::diagramSettings	(	const QgsFeature &	feature,
		const QgsRenderContext &	c,
		QgsDiagramSettings &	s
	)

protectedpure virtual

Returns diagram settings for a feature (or false if the diagram for the feature is not to be rendered).

Used internally within renderDiagram()

Parameters

feature	the feature
c	render context
s	out: diagram settings for the feature

Implemented in QgsLinearlyInterpolatedDiagramRenderer, and QgsSingleCategoryDiagramRenderer.

virtual QSizeF QgsDiagramRendererV2::diagramSize	(	const QgsFeature &	features,
		const QgsRenderContext &	c
	)

protectedpure virtual

Returns size of the diagram (in painter units) or an invalid size in case of error.

Implemented in QgsLinearlyInterpolatedDiagramRenderer, and QgsSingleCategoryDiagramRenderer.

int QgsDiagramRendererV2::dpiPaintDevice ( const QPainter * painter )

staticprotected

Returns the paint device dpi (or -1 in case of error.

Definition at line 362 of file qgsdiagramrendererv2.cpp.

QList< QgsLayerTreeModelLegendNode * > QgsDiagramRendererV2::legendItems ( QgsLayerTreeLayer * nodeLayer ) const

virtual

Returns list of legend nodes for the diagram.

Note: caller is responsible for deletion of QgsLayerTreeModelLegendNodes; added in 2.10

Reimplemented in QgsLinearlyInterpolatedDiagramRenderer, and QgsSingleCategoryDiagramRenderer.

Definition at line 561 of file qgsdiagramrendererv2.cpp.

virtual void QgsDiagramRendererV2::readXML	(	const QDomElement &	elem,
		const QgsVectorLayer *	layer
	)

pure virtual

Implemented in QgsLinearlyInterpolatedDiagramRenderer, and QgsSingleCategoryDiagramRenderer.

void QgsDiagramRendererV2::renderDiagram	(	const QgsFeature &	feature,
		QgsRenderContext &	c,
		const QPointF &	pos
	)

Definition at line 318 of file qgsdiagramrendererv2.cpp.

virtual QString QgsDiagramRendererV2::rendererName ( ) const

pure virtual

Implemented in QgsLinearlyInterpolatedDiagramRenderer, and QgsSingleCategoryDiagramRenderer.

void QgsDiagramRendererV2::setDiagram ( QgsDiagram * d )

Definition at line 307 of file qgsdiagramrendererv2.cpp.

QSizeF QgsDiagramRendererV2::sizeMapUnits	(	const QgsFeature &	feature,
		const QgsRenderContext &	c
	)

virtual

Returns size of the diagram for a feature in map units.

Returns an invalid QSizeF in case of error

Definition at line 334 of file qgsdiagramrendererv2.cpp.

virtual void QgsDiagramRendererV2::writeXML	(	QDomElement &	layerElem,
		QDomDocument &	doc,
		const QgsVectorLayer *	layer
	)		const

pure virtual

Implemented in QgsLinearlyInterpolatedDiagramRenderer, and QgsSingleCategoryDiagramRenderer.

Member Data Documentation

QgsDiagram* QgsDiagramRendererV2::mDiagram

protected

Reference to the object that does the real diagram rendering.

Definition at line 239 of file qgsdiagramrendererv2.h.

The documentation for this class was generated from the following files:

/tmp/buildd/qgis-2.12.0+99unstable/src/core/qgsdiagramrendererv2.h
/tmp/buildd/qgis-2.12.0+99unstable/src/core/qgsdiagramrendererv2.cpp

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation